\documentclass[11pt]{article} %A4纸

\usepackage[utf8]{inputenc}
\usepackage{geometry}
\usepackage{setspace} % 行距控制
\usepackage{enumitem}
\usepackage{color}

\geometry{a4paper, left=1.5cm, right=1.5cm, top=1.5cm, bottom=2.0cm}

\usepackage{amssymb,latexsym,amsmath,amsfonts,ctex}

% === 自定义标题格式 ===
\makeatletter
\renewcommand{\@maketitle}{%
  \begin{flushleft} % 左对齐
    {\Large\bfseries \@title } % 标题字体大小和加粗
    \hspace{1.5em} % 标题与作者之间的左右间距
    {\large \@author \par} % 作者字体大小，然后换行
    \vspace{0.5em} % 作者与日期之间的行间距
    {\normalsize \@date \par} % 日期字体大小，然后换行
    \vspace{-0.4em} % 日期与摘要之间的间距
  \end{flushleft}
}
\makeatother

% === 自定义摘要环境 ===
\renewenvironment{abstract}{
  \begin{flushleft} % 左对齐
    {\small\bfseries 内容提要 \par} % 摘要标题、加粗
    \vspace{-0.2em} % 标题与内容之间的间距
    \small % 摘要正文字体大小
  \end{flushleft}
  }
    
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}

\title{高等代数二期中考试解答} 
\author{学号 \underline{\hspace{3.5cm}} \hspace{0.5cm} 姓名 \underline{\hspace{3.5cm}} }
\date{2025年5月8日} %\date{\today}

\input{高等代数二期中考试题库} % 载入题库文件 

\maketitle 

%\begin{abstract}
%1.1-7.5
%\end{abstract}

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\begin{enumerate}\itemsep0.2cm
\item  \KMA  \par \KMAsol 
\item  \KMB  \par \KMBsol 
\item  \KMC  \par \KMCsol 
\item  \KMD  \par \KMDsol 
\item  \KME  \par \KMEsol 
\item  \KMF  \par \KMFsol 
\item  \KMG  \par \KMGsol 
\item  \KMH  \par \KMHsol 
\item  \KMI  \par \KMIsol 
\item  \KMJ  \par \KMJsol 
\item  \KMK  \par \KMKsol 
\item  \KML  \par \KMLsol 
\item  \KMM  \par \KMMsol 
\item  \KMN  \par \KMNsol 
\item  \KMO  \par \KMOsol 
\item  \KMP  \par \KMPsol 
\item  \KMQ  \par \KMQsol 
\item  \KMR  \par \KMRsol 

\end{enumerate}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\end{document}

